Description of new Ceratitis MacLeay (Diptera, Tephritidae) species from Africa
Author
Meyer, Marc De
Author
Copeland, Robert S.
text
Journal of Natural History
2005
2005-09-30
39
16
1283
1297
http://dx.doi.org/10.1080/00222930400004347
journal article
10.1080/00222930400004347
1464-5262
5214445
Ceratitis (Ceratalaspis) perseus
sp. nov.
(
Figures 3
,
6
,
9
,
14
)
Diagnosis
Arista with medium long rays; frons yellow, without silvery microtrichosity; postpronotal lobe with distinct black spot; scutal pattern with distinct black markings; anepisternum yellow with upper half white, with one anepisternal seta; wing bands with subapical band separate, posterior apical band absent; male mid tibia with black feathering; abdomen without distinct spots, with grey band on tergites 2 and 4; aculeus tip with median step.
Description
Male. Head
: antenna yellow to yellow-orange. First flagellomere three times as long as pedicel. Arista with medium long rays, longest dorsal rays about three times as long as basal width of arista; ventral rays shorter than dorsal rays basally. Frons yellow to pale yellow; with short scattered black and yellow setulae. Face white. Genal seta and setulae black, well developed.
Thorax
: postpronotal lobe pale yellowish white; with black spot. Scutal pattern (
Figure 3
), ground colour yellow to dark orange, with distinct black markings, including median sutural spot, prescutellar markings white, separated by pale area; with golden microtrichosity and yellow pilosity. Scapular setae black. Scutellum white to yellow, basally with black spots, apically with three separate black spots, extending to basal third. Subscutellum black. Anepisternum yellow, upper half white, one anepisternal seta, setulae white to yellow.
Legs
: yellow; setation yellow to orange. Fore femur with ventral setae mainly black; posteriorly with dense yellow to silvery pilosity. Mid leg (
Figure 6
), femur ventrally with few conspicuously longer yellow setulae along basal third; tibia with black feathering at apical outer half and inner two-fifths, area of tibia with feathering coloured black.
Wing
: pattern as in
Figure 9
; bands mainly yellowish with some brown patches. Anterior apical and discal bands largely but incompletely separated, narrowly joined; subapical band free; posterior apical band absent; crossvein R-M at, or just distal to, middle of discal medial cell.
Abdomen
: yellow to orange; pilosity mixed yellow and black. Tergites 2 and 4 with pale grey band occupying posterior third of tergite. Tergite 5 with longer black setulae along posterior margin.
Female.
As male except for the following characters. Frons only with short black setulae. Fore femur with less dense pilosity posteriorly; mid tibia without black feathering, completely yellow. Oviscape shorter than preabdomen. Aculeus eight times longer than wide, tip (
Figure 14
) with median step and lateral margin slightly sinuate.
Body length.
5.60 (4.80–6.20) mm.
Wing length.
5.35 (4.55–5.70) mm.
Type material
Holotype
:
„
,
Kenya
, Coast Province, Shimba Hills,
24 April 2002
,
USDA
sample 1902, reared ex fruits
Pleiocarpa pycnantha
, leg.
R
.
S. Copeland.
Holotype
deposited in collection of
NMK
.
Paratypes
: 13
„„
,
13♀♀
, same data as holotype; 3
„„
,
3♀♀
, same locality as
holotype
,
23 April 2002
,
USDA
sample 1957, reared ex fruits
Pleiocarpa pycnantha
; Watamu, 2
„„
,
5♀♀
,
15 April 2000
,
USAID
sample K500, reared ex fruits
Hunteria zeylanica
; 1
„
,
1♀
,
16 May 2000
,
USAID
sample 680, reared ex fruits
Hunteria zeylanica
; 4
„„
,
3♀♀
,
9 February 2001
,
USDA
sample 985, reared ex fruits
Hunteria zeylanica
;
Eastern Province
,
Ngaia Forest
upper part, 115
„„
,
89♀♀
,
5 December 2003
,
USDA
sample 2602, reared ex fruits
Pleiocarpa pycnantha
; all leg.
R
.
S. Copeland
.
Paratypes
deposited in collections of
NMK
,
KMMA
,
BMNH
,
TAMU
,
ICIPE
and
USNM
.
Etymology
After the Greek mythological figure Perseus, who borrowed the God Hermes’ winged shoes when killing the Medusa.
Host plants
Reared from the fruits of
Hunteria zeylanica
(Retz.) Gardn.
and
Pleiocarpa pycnantha
(K. Schum.) Stapf
(both
Apocynaceae
).
Remarks
This is an enigmatic species, showing characteristics of the subgenus
Ceratalaspis
, and apparently related to the
stictica
group as defined in
De Meyer (1998)
. However, the male has secondary sexual characters typical for the subgenus
Pterandrus
in that the mid tibia has distinct black feathering (the only other
Ceratalaspis
species with feathering,
C. neostictica
De Meyer
, has orange feathering on the mid tibia).
C. perseus
lacks, however, the black band on abdominal tergite 3 which is found in most
Pterandrus
species.
C
. perseus
shows some affinities with
C. brucei
Munro. The
latter is only known from the female
holotype
of which the aculeus tip is damaged. However, the general shape of the aculeus in the latter is different from that of
C. perseus
. In
brucei
it is slender, and gradually narrowing towards the apex, while in
C. perseus
it is much broader (cf.
Figures 14 and 15
). Currently, we place this species in the subgenus
Ceratalaspis
. The species can be identified with the key provided by
De Meyer (1998)
given the following adjustment.
29 Wing pattern dark brown; mesonotum ash-grey........
roubaudi
– Wing pattern yellow or yellow-brown; mesonotum with yellow-orange tinge. 29a
29a Male mid tibia with black feathering at apical outer half and inner two-fifths, area of tibia with feathering coloured black; female aculeus tip with median step...................
perseus
sp. n.
– Male mid tibia without feathering, all pilosity yellow to orange; female aculeus tip either simply pointed or slightly bilobed, never with median step.... 30